Mandrel extension



FIG. 1 is a front perspective view of a mandrel extension showing the new design;

FIG. 2 is a front view of the mandrel extension of FIG. 1;

FIG. 3 is a left side view of the mandrel extension of FIG. 1, the right side elevational view being essentially a mirror image thereof;

FIG. 4 is a top view of the mandrel extension of FIG. 1; and,

FIG. 5 is a bottom view of the mandrel extension of FIG. 1.

The portions of the Figures shown in phantom lines are either unclaimed boundary lines or for illustrative purpose only, and no phantom line forms a part of the claimed design. 

CLAIM We claim the ornamental design for a mandrel extension, as shown and described. 